Caster.



J. RAE.

GASTER.

APPLICATION FILED FEB. 15, 1911.

Patented Feb. 13,1912.

FIG. ,2.

FIG. I.

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AWE/V701? w w. E W w TED STATES PATENT onnron.

JOHN RAE, 0F PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO KEARNS MANUFAC-TURING COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A CORPORATION OF DEL-AWARE.

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PatentedFeb. 13, 1912.

Original application filed March 30, 1910, Serial No. 552,292. Dividedand this application filed February To all whom it may concern Be itknown that I, JOHN RAE, a citizen of the United States, residing atPhiladelphia, county of Philadelphia, and State of Pennsylvania, haveinvented a new and useful Improvement in Casters, of which the followingis a full, clear, and exact description, reference being had to theaccompanying drawings, which form a part of this specification.

The object of my invention is to provide a caster for a dress form,display stand, or the like, which is so constructed that it may bereadily frictionally locked to the floor at any point to which the standis moved and may be readily unlocked when it is desired to move it fromone location to another.

In the drawings: Figure 1 is an elevation of a stand embodying myinvention. Fig. 2- is a vertical sect-ion of the locking mechanism. Fig.3 is an elevation of the locking mechanism, g

a is the base of the stand, b a post mounted thereon, and 0 a dress formcarried by the post. Through one leg, or each of two or more legs, ofthe base extends a post (Z, upon which is swiveled a bracket 6 carryinga roller f. Upon the lower end of the post is threaded a nut g and arubber block it, the latter projecting below the post and provided witha conical centrally-located aperture 2' in its lower face. Mounted onthe top of the leg is a frame or casing 70, orificed to permit the post(Z to extend through it.

at is a spring confined between the top of the casing and a head '22- onthe upper end of the post.

0 and p are pins extending through the casing and the leg on oppositesides of the p 1" is a lever, fulcrumed at one end against the wall ofan orifice in one side of the casing, loosely sleeved-on the post (Z andthe two pins 0 and p, and at its other end projecting through anotherand larger orifice in the other side of the casing.

s is a spring surrounding one of the pins and confined between thebottom of the easing and a washer on the casing beneath the lever r. Thediameter of the orifice in the lever through which the post 0? extendsis slightly greater than the diameter of the post. The spring 8 normallyholds the lever Serial No. 608,658.

1- is an inclined posit-ion, so that opposite edges of the orificeengage the post and hold the latter from upward movement. The lever,however, offers no resistance to downward movement of the post, as suchclownward movement moves the lever toward a horizontal position, therebyrelieving its grip upon the post.

When the post is in its upper position, as indicated in Fig. 2, therubber block it is above the level of the floor, and the dress form maybe freely moved about on its rollers. By bearing with the foot upon thehead of the post 0?, the latter may be depressed until the block itfirmly engages the floor. Upon releasing the foot pressure upon thepost, the lever 7' immediately locks the post from rising in the base;and the compressed rubber block h, partially relieved, expands and takesthe weight oif of the roller, this weight making suflicient frictionbetween rubber block and floor to give the necessary resistance tolateral motion. The dress form is thus frictionally locked to the floor.To release the same, the outer up-turned end of the lever 1" isdepressed, thereby releasing its grip upon the post at, and the latter,under'the impulse of the spring m, is immediately lifted.

This applicationis a division of an application filed by me March 30,1910, Serial No. 552,292,

Having now fully described my invention, what I claim and desire toprotect by Letters Patent is 1. In a caster, the combination with thebase and rollers on which the same is mounted, of a post slidable on thebase, locking means including a. spring and lever, the latter engagingthe post and normally preventing it from rising, a spring tending tolift the post, and an elastic block, on the lower end of the post,adapted to contact with the floor when the post is depressed, said blockbeing recessed in its bottom, thereby permitting the block to, expand,upon release of downward. pressure upon the post, and relieve the weightupon the adjacent roller.

2. In a caster, the combination With the base, of a frame mounted abovethe base, a post slidable in both the base and frame, a bracket swiveledon the post, a fioor engaghereunto set my hand, at Philadelphia, on this31st day of January, 1911.

JOHN RAE.

ing device on the lower end of the post, a locking lever pivoted on theframe and engaging the post, 9 spring normally holding said lever inlocklng position, a head on the post, and a spring confined between theframe and said head.

In testimony of Which invention, I have Vitnesses M. M. HAMILTON, E, E.WALL.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

